A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Nuts of iron or steel
NSN 5985-00-591-3001
NSN 6645-00-952-0662
NSN 6620-00-021-6876
NSN 6320-01-140-1763
NSN 6150-01-519-9309
NSN 5905-01-611-0410
NSN 6150-01-443-5096
NSN 6110-01-168-8291
NSN 5905-00-650-4627
NSN 6645-00-574-9712
NSN 5945-01-034-2196
NSN 6620-00-218-1228